FOSSILS FROM THE ENVIRONS OF TOKYO. 35 



entirely devoid of loiiQ;itudiiinl and transverse striations, some- 

 times with a few annular swellings. Apex with simple orifiee, 

 no slit; aperture as well as apical orifice circular. Length 2~>""" 

 in the largest specimen, and Ibrteen to sixteen times the great- 

 est diameter. 



Shinagawa and Oji (rare). 



The living specimens were collected near Enoshima and 

 Nagasaki. 



Pelecypoda. 

 Order Siphonida. 



PHOLADID/E. 



91. TflARTESU STRIATA Linné. 



PL II. Fig. 18. 



DuNKER, Index Moll. Maris Jap.,— Chall. Report, Vol. XIII., p. 19 



and 27. — TnvoN, Struct, and Syst. Conch., III., p. 128. 

 Synonym. — Pholas pusilla Linné. 



In the drift woods found in the bluish clay of Tabata 

 (frequent). 



Living chiefly in the floating woods and found in Japan, 

 Philippines, West Indies, German Ocean, Mediterranean öea, 

 Antillus, Central America, etc. 



SOLENID/E. 

 92. HOLES OOrLDII Conrad. 



DuNKER, Index Moll. Maris Jap., p. 173. — Lisciikk, Jap. ^Meeres- 

 Conch., II., p. 123. — Gould, Otia Conch., p. 165. — Syst. Conch. 

 Cab., XI. 3, p. 21. — Brauns, Geol. Env. Tokio, p. 36. 



